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AModelCat · Apr 3, 2026 at 11:49 AM

Anybody happen to know at what weight a steer axle requires an assist cylinder or dual boxes? Really think this truck would look cool with 385's up front.

pushbroom · Apr 3, 2026 at 12:31 PM

I have guys running 385s on a standard 12k axle.
Twin boxes usually happen around 16-18k

Oxbow · Apr 3, 2026 at 12:48 PM

AModelCat said: ↑

Anybody happen to know at what weight a steer axle requires an assist cylinder or dual boxes? Really think this truck would look cool with 385's up front.
Click to expand...

We have 315s on our dump truck, and changes the look quite a bit without going overboard so much. I assume you are never going to actually need the weight capacity for what you are doing with it.

AModelCat · Apr 3, 2026 at 1:05 PM

Oxbow said: ↑

We have 315s on our dump truck, and changes the look quite a bit without going overboard so much. I assume you are never going to actually need the weight capacity for what you are doing with it.
Click to expand...

I may need it, haven't decided yet. It's getting a different steer axle anyways because I don't want to deal with the expense and time of doing kingpins and converting over to hub pilots.

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